YueFornaraYangEtAl2017

Référence

Yue, K., Fornara, D.A., Yang, W., Peng, Y., Li, Z., Wu, F. and Peng, C. (2017) Effects of three global change drivers on terrestrial C:N:P stoichiometry: a global synthesis. Global Change Biology, 23(6):2450-2463. (Scopus )

Résumé

Over the last few decades, there has been an increasing number of controlled-manipulative experiments to investigate how plants and soils might respond to global change. These experiments typically examined the effects of each of three global change drivers [i.e., nitrogen (N) deposition, warming, and elevated CO2] on primary productivity and on the biogeochemistry of carbon (C), N, and phosphorus (P) across different terrestrial ecosystems. Here, we capitalize on this large amount of information by performing a comprehensive meta-analysis (>2000 case studies worldwide) to address how C:N:P stoichiometry of plants, soils, and soil microbial biomass might respond to individual vs. combined effects of the three global change drivers. Our results show that (i) individual effects of N addition and elevated CO2 on C:N:P stoichiometry are stronger than warming, (ii) combined effects of pairs of global change drivers (e.g., N addition + elevated CO2, warming + elevated CO2) on C:N:P stoichiometry were generally weaker than the individual effects of each of these drivers, (iii) additive interactions (i.e., when combined effects are equal to or not significantly different from the sum of individual effects) were more common than synergistic or antagonistic interactions, (iv) C:N:P stoichiometry of soil and soil microbial biomass shows high homeostasis under global change manipulations, and (v) C:N:P responses to global change are strongly affected by ecosystem type, local climate, and experimental conditions. Our study is one of the first to compare individual vs. combined effects of the three global change drivers on terrestrial C:N:P ratios using a large set of data. To further improve our understanding of how ecosystems might respond to future global change, long-term ecosystem-scale studies testing multifactor effects on plants and soils are urgently required across different world regions. © 2017 John Wiley & Sons Ltd

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@ARTICLE { YueFornaraYangEtAl2017,
    AUTHOR = { Yue, K. and Fornara, D.A. and Yang, W. and Peng, Y. and Li, Z. and Wu, F. and Peng, C. },
    TITLE = { Effects of three global change drivers on terrestrial C:N:P stoichiometry: a global synthesis },
    JOURNAL = { Global Change Biology },
    YEAR = { 2017 },
    VOLUME = { 23 },
    NUMBER = { 6 },
    PAGES = { 2450-2463 },
    NOTE = { cited By 5 },
    ABSTRACT = { Over the last few decades, there has been an increasing number of controlled-manipulative experiments to investigate how plants and soils might respond to global change. These experiments typically examined the effects of each of three global change drivers [i.e., nitrogen (N) deposition, warming, and elevated CO2] on primary productivity and on the biogeochemistry of carbon (C), N, and phosphorus (P) across different terrestrial ecosystems. Here, we capitalize on this large amount of information by performing a comprehensive meta-analysis (>2000 case studies worldwide) to address how C:N:P stoichiometry of plants, soils, and soil microbial biomass might respond to individual vs. combined effects of the three global change drivers. Our results show that (i) individual effects of N addition and elevated CO2 on C:N:P stoichiometry are stronger than warming, (ii) combined effects of pairs of global change drivers (e.g., N addition + elevated CO2, warming + elevated CO2) on C:N:P stoichiometry were generally weaker than the individual effects of each of these drivers, (iii) additive interactions (i.e., when combined effects are equal to or not significantly different from the sum of individual effects) were more common than synergistic or antagonistic interactions, (iv) C:N:P stoichiometry of soil and soil microbial biomass shows high homeostasis under global change manipulations, and (v) C:N:P responses to global change are strongly affected by ecosystem type, local climate, and experimental conditions. Our study is one of the first to compare individual vs. combined effects of the three global change drivers on terrestrial C:N:P ratios using a large set of data. To further improve our understanding of how ecosystems might respond to future global change, long-term ecosystem-scale studies testing multifactor effects on plants and soils are urgently required across different world regions. © 2017 John Wiley & Sons Ltd },
    AFFILIATION = { Long-term Research Station of Alpine Forest Ecosystems, Provincial Key Laboratory of Ecological Forestry Engineering, Institute of Ecology and Forestry, Sichuan Agricultural University, Chengdu, China; Department of Biological Science, Institute of Environment Sciences, University of Quebec at Montreal, Montreal, QC, Canada; Agri-Food & Biosciences Institute (AFBI), Newforge Lane, Belfast, United Kingdom; Department of Geosciences and Natural Resource Management, University of Copenhagen, Rolighedsvej 23, Frederiksberg C, Denmark; Laboratory for Ecological Forecasting and Global Change, College of Forestry, Northwest A & F University, Yangling, Shaanxi, China },
    AUTHOR_KEYWORDS = { ecological stoichiometry; ecosystem functioning; elevated CO2; nitrogen deposition; stoichiometric homeostasis; warming },
    DOCUMENT_TYPE = { Article },
    DOI = { 10.1111/gcb.13569 },
    SOURCE = { Scopus },
    URL = { https://www.scopus.com/inward/record.uri?eid=2-s2.0-85013460453&doi=10.1111%2fgcb.13569&partnerID=40&md5=9441be331dc1cc3423bace699f9f5166 },
}

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